EP0825698A2 - Method for supervising and controlling the process of opening and closing electrically driven aggregats - Google Patents

Method for supervising and controlling the process of opening and closing electrically driven aggregats Download PDF

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Publication number
EP0825698A2
EP0825698A2 EP97114106A EP97114106A EP0825698A2 EP 0825698 A2 EP0825698 A2 EP 0825698A2 EP 97114106 A EP97114106 A EP 97114106A EP 97114106 A EP97114106 A EP 97114106A EP 0825698 A2 EP0825698 A2 EP 0825698A2
Authority
EP
European Patent Office
Prior art keywords
servomotor
area
adjustment
voltage
speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97114106A
Other languages
German (de)
French (fr)
Other versions
EP0825698A3 (en
Inventor
Eduard Bergmann
Volker Pretzlaff
Norbert HÖRST
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leopold Kostal GmbH and Co KG
Original Assignee
Leopold Kostal GmbH and Co KG
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Publication date
Application filed by Leopold Kostal GmbH and Co KG filed Critical Leopold Kostal GmbH and Co KG
Publication of EP0825698A2 publication Critical patent/EP0825698A2/en
Publication of EP0825698A3 publication Critical patent/EP0825698A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
    • B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
    • B60J7/057—Driving or actuating arrangements e.g. manually operated levers or knobs
    • B60J7/0573—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0851—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
    • E05F15/695—Control circuits therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/36—Speed control, detection or monitoring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/52—Safety arrangements associated with the wing motor
    • E05Y2400/53—Wing impact prevention or reduction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/542—Roof panels
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows

Definitions

  • the present invention is based on a corresponding to the preamble of Main claim designed procedures.
  • Such methods are particularly intended to help during the closing process of the electrically operated unit present in a motor vehicle Excessive risk to persons in the area of this unit by pinching parts of the body.
  • control electronics assigned to the unit on the one hand via control elements and on the other hand can be influenced via a sensor device. In doing so continuously from the sensor device, e.g. on the speed or the opening or Closing speed of the adjustable unit part or the associated one Actuator-dependent measured values of the control electronics transmitted, which one subject to area-related assessment.
  • a second area which goes from the approximately half-open to an almost completely closed state of the unit, the monitoring, which is geared towards the aforementioned safety aspects, is then carried out.
  • This area could of course be expanded by the first area without additional effort, even if security is required for the first area.
  • a third (quite small) area which goes from the almost completely closed to the completely closed state of the unit and is assigned to the inlet of the unit part to be adjusted into the sealing arrangement provided there, again no monitoring is carried out, because in this Area no longer endanger body parts.
  • DE 37 28 008 A1 has disclosed an actuating device for movable parts provided for closing and opening openings, the speed of the servomotor and thus the speed of the movable part being variable.
  • an indication of a position-related influencing of the speed in order to limit the force exerted in the event of a pinch cannot be derived from this.
  • DE 37 36 400 A1 has disclosed a method which essentially corresponds to the above conditions, with the speed and thus the force exerted on an object being additionally taken into account in the transition from the first or third region to the second region - taking into account the safety aspects compared to the conditions prevailing in the first or third area.
  • the speed in the safety-relevant second area is no longer changed, so that a sensitive coordination of the forces that may possibly be exerted cannot be achieved.
  • the present invention is therefore based on the object in the preamble of the main claim advanced procedures such that the force exerted on the part of the unit to be adjusted in the event of jamming above critical Areas of the adjustment path can be limited to a minimum.
  • the task is performed in the characterizing part of Measures specified in the main claim. This is an advantage
  • the procedure is that the entire adjustment range is very sensitive to the Adjustment speed and thus with regard to the jammed objects Exerted force can be optimized.
  • the electrically powered unit from represents a window lifting system arranged in a motor vehicle door 7, which is provided with an electric servomotor 1, which has only one indicated actuator 8 the unit part 9 to be adjusted (window pane) moves and thus that of the unit part to be adjusted and one fixed unit part (window frame) formed unit (window) opens or closes.
  • the electric servomotor 1 is a Power semiconductor switching stage 6 on the power supply (vehicle electrical system) connected with control electronics influenced by a clock 5 3 is connected, the one hand controls 2 and the other one Sensor device 4 are assigned.
  • the control electronics 3 and thus the servomotor 1 via the controls 2 directly and via the Sensor device 4 indirectly by causally with the window lifting system related adjustment parameters are influenced.
  • the entire adjustment path s of the window pane 9 is divided into two adjustment areas a, b divided, of which an area a, from the fully open to a predominantly closed state of the window, so-called first security area is to be seen.
  • this adjustment area a starting from a so-called first, possibly continuously improved Measured value examined by continuous testing, whether one from this measured value formed, static and dynamic quantities taking into account the limit of subsequently determined measured values are exceeded. If so, so is via the control electronics, preferably consisting of a microcomputer 3 initiated a so-called danger opening of the window, i.e. the electric Actuator 1 is switched off and then operated in opposite directions, so that The window is opened again, the opening path then being freely chosen can.
  • the area a can be divided into two sections a ', a' ', in one from the fully open to the approximately half-open state of the window outgoing section a 'no safety in the case of pinching in above mentioned sense is there because in this section the pinching excluded from body parts with a greater or lesser probability can be.
  • section a '' on the other hand, the procedure is as mentioned, that is, in In the event of jamming, the servomotor is switched off and, if necessary, the The aforementioned so-called danger opening of the window.
  • the power of the servomotor 1 by specifying a calculated, preferably by means of pulse width modulation Supply voltage generated voltage so far lowered that this the adjustment speed to the lowest possible, i.e. an engine stop just not allowed value reduced. Because of this, the im System existing kinetic energy is reduced, so that the system otherwise unchanged sensors and given mechanical parameters possible trapping bodies reacted with minimized forces.
  • this area b can again be divided into two sections b ', b' ' , in section b '- in which a pinching of e.g. Fingers still is possible - the security is guaranteed while in the area b '' of the Entry of the window pane into the cooperating sealing arrangement assigned, it does not exist due to lack of relevance. In this Area can no longer pinch fingers or other body parts occur. But it must be ensured that the window is perfect is closed, making a higher one due to the sealants involved Exertion of force is connected, contrary to the aforementioned safety criteria stands.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Window Of Vehicle (AREA)
  • Control Of Electric Motors In General (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

The method involves reducing the speed to a minimum over the adjustment path section (s) from the fully closed position to the almost completely closed position by specifying an appropriate electrical current and/or voltage which defines the power and whilst preventing the motor (1) from stopping. At least one of the two parameters defining the power is not changed by the switching stage over the range between the two defined positions or sections of the adjustment path.

Description

Die vorliegende Erfindung geht von einem entsprechend dem Oberbegriff des Hauptanspruches konzipierten Verfahren aus.The present invention is based on a corresponding to the preamble of Main claim designed procedures.

Solche Verfahren sind insbesondere dafür vorgesehen, um beim Schließvorgang des in einem Kraftfahrzeug vorhandenen, elektrisch betriebenen Aggregates eine übermäßige Gefährdung von im Bereich dieses Aggregates befindlichen Personen durch das Einklemmen von Körperteilen zu vermeiden.Such methods are particularly intended to help during the closing process of the electrically operated unit present in a motor vehicle Excessive risk to persons in the area of this unit by pinching parts of the body.

Durch die DE 31 36 746 C2 ist ein derartiges Verfahren bekanntgeworden, wobei eine dem Aggregat zugeordnete Steuerelektronik einerseits über Bedienelemente und andererseits über eine Sensoreinrichtung beeinflußbar ist. Dabei werden laufend von der Sensoreinrichtung, u.a. von der Drehzahl oder der Öffnungs- bzw. Schließgeschwindigkeit des verstellbaren Aggregatteiles bzw. des zugehörigen Stellmotors abhängige Meßwerte der Steuerelektronik übermittelt, die einer bereichsbezogenen Bewertung unterzogen werden. Such a method has become known from DE 31 36 746 C2, wherein control electronics assigned to the unit on the one hand via control elements and on the other hand can be influenced via a sensor device. In doing so continuously from the sensor device, e.g. on the speed or the opening or Closing speed of the adjustable unit part or the associated one Actuator-dependent measured values of the control electronics transmitted, which one subject to area-related assessment.

Im einzelnen bedeutet dies, daß in einem ersten Bereich, der von einem völlig geöffneten bis zu einem etwa halb geöffneten Zustand des Aggregates geht, keine Überwachung stattfindet. In einem zweiten Bereich, der von dem etwa halb geöffneten bis zu einem fast vollständig geschlossenem Zustand des Aggregates geht, wird dann die auf die vorerwähnten Sicherheitsaspekte ausgerichtete Überwachung durchgeführt. Dieser Bereich könnte natürlich ohne Mehraufwand um den ersten Bereich erweitert werden und zwar wenn auch für den ersten Bereich die Sicherheit verlangt wird.
In einem dritten (recht kleinen) Bereich, der von dem fast vollständig geschlossenen bis zu dem vollständig geschlossenen Zustand des Aggregates geht und dem Einlauf des zu verstellenden Aggregateteiles in die dort vorgesehene Dichtungsanordnung zugeordnet ist, wird wiederum keine Überwachung vorgenommen, und zwar weil in diesem Bereich keine Gefährdung von Körperteilen mehr auftreten kann. Bei einem derart konzipierten Aggregat besteht das Problem, daß der Stellmotor bzgl. seiner Leistung so ausgelegt sein muß, daß die über den gesamten Verstellbereich sich ergebenden, z.B. durch konstruktive Gestaltung des Aggregates oder durch äußere Einflüsse bedingten mechanischen Widerstände überwindbar sind. In der Konsequenz bedeutet dies, daß der Stellmotor leistungsmäßig deutlich größer ausgelegt sein muß, als es für den über den weitaus größten Teil des Verstellweges erforderlichen Bedarf notwendig ist. Dadurch besteht dann aber wieder die Problematik, daß von dem zu verstellenden Aggregateteil ein Körperteil mit einer unverhältnismäßig hohen Kraft/Weg-Rate eingeklemmt werden kann.Specifically, this means that no monitoring takes place in a first area, which goes from a fully open to an approximately half-open state of the unit. In a second area, which goes from the approximately half-open to an almost completely closed state of the unit, the monitoring, which is geared towards the aforementioned safety aspects, is then carried out. This area could of course be expanded by the first area without additional effort, even if security is required for the first area.
In a third (quite small) area, which goes from the almost completely closed to the completely closed state of the unit and is assigned to the inlet of the unit part to be adjusted into the sealing arrangement provided there, again no monitoring is carried out, because in this Area no longer endanger body parts. The problem with a unit designed in this way is that the output of the servomotor must be designed such that the mechanical resistances resulting from the entire adjustment range, for example due to the structural design of the unit or due to external influences, can be overcome. As a consequence, this means that the power of the servomotor must be designed to be significantly larger than is necessary for the need required over the vast majority of the adjustment path. As a result, however, there is again the problem that a body part with a disproportionately high force / displacement rate can be clamped in by the unit part to be adjusted.

Außerdem ist durch die DE 37 28 008 A1 eine Betätigungseinrichtung für zum Schließen und Freigeben von Öffnungen vorgesehene bewegbare Teile bekanntgeworden, wobei die Drehzahl des Stellmotors und damit die Geschwindigkeit des bewegbaren Teils veränderbar ist.
Ein Hinweis auf eine positionsbezogene Beeinflussung der Drehzahl zwecks Begrenzung der im Einklemmfall ausgeübten Kraft ist daraus jedoch nicht ableitbar. In addition, DE 37 28 008 A1 has disclosed an actuating device for movable parts provided for closing and opening openings, the speed of the servomotor and thus the speed of the movable part being variable.
However, an indication of a position-related influencing of the speed in order to limit the force exerted in the event of a pinch cannot be derived from this.

Vielmehr wird im Gegenteil darauf hingewiesen, das Drehmoment, d.h. die Kraft auch bei reduzierter Drehzahl beizubehalten.On the contrary, it is pointed out that the torque, i.e. the force to maintain even at reduced speed.

Weiterhin ist durch die DE 37 36 400 A1 ein den vorstehenden Gegebenheiten im wesentlichen entsprechendes Verfahren bekanntgeworden, wobei zusätzlich beim Übergang vom ersten bzw. dritten Bereich zum zweiten - den Sicherheitsaspekten Rechnung tragenden - Bereich die Geschwindigkeit und damit die im Einklemmfall auf ein Objekt ausgeübte Kraft gegenüber den im ersten bzw. dritten Bereich herrschenden Verhältnisse reduziert wird.
Bei dieser bekannten Ausführungsform besteht aber das Problem, daß die Geschwindigkeit im sicherheitsrelevanten zweiten Bereich nicht mehr verändert wird, so daß eine feinfühlige Abstimmung der gegebenenfalls zur Ausübung gelangenen Kräfte nicht realisierbar ist.Furthermore, DE 37 36 400 A1 has disclosed a method which essentially corresponds to the above conditions, with the speed and thus the force exerted on an object being additionally taken into account in the transition from the first or third region to the second region - taking into account the safety aspects compared to the conditions prevailing in the first or third area.
In this known embodiment, however, there is the problem that the speed in the safety-relevant second area is no longer changed, so that a sensitive coordination of the forces that may possibly be exerted cannot be achieved.

Schließlich gehört gemäß der Deutschen Patentanmeldung 195 07 137.9 ein Verfahren zum Stand der Technik, bei dem zur Erzielung einer feinfühligen Abstimmung der gegebenenfalls im sicherheitsrelevanten zweiten Bereich ausgeübten Kräfte die Geschwindigkeit in diesem Bereich reduziert wird. Bei diesem Verfahren werden die gegebenenfalls im zweiten Bereich ausgeübten Kräfte jedoch nicht zwangsläufig auf den durch die tieftsmögliche Geschwindigkeit bedingten untersten Wert begrenzt.Finally, according to German patent application 195 07 137.9 State of the art method in which to achieve a sensitive Coordination of, if necessary, in the security-relevant second area applied forces the speed in this area is reduced. In this process, those who may be exercised in the second area are used However, forces do not necessarily affect the lowest possible speed conditional lowest value limited.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, das im Oberbegriff des Hauptanspruches vorausgesetzte Verfahren derart weiterzubilden, daß die von dem zu verstellenden Aggregateteil im Einklemmfall ausgeübte Kraft über kritische Bereiche des Verstellweges auf ein Minimum begrenzbar ist.The present invention is therefore based on the object in the preamble of the main claim advanced procedures such that the force exerted on the part of the unit to be adjusted in the event of jamming above critical Areas of the adjustment path can be limited to a minimum.

Erfindungsgemäß wird die Aufgabe durch die im kennzeichnenden Teil des Hauptanspruches angegebenen Maßnahmen gelöst. Vorteilhaft bei einer solchen Vorgehensweise ist, daß der gesamte Verstellbereich sehr feinfühlig hinsichtlich der Verstellgeschwindigkeit und damit bezüglich der auf eingeklemmte Objekte ausgeübten Kraft optimiert werden kann. According to the invention, the task is performed in the characterizing part of Measures specified in the main claim. This is an advantage The procedure is that the entire adjustment range is very sensitive to the Adjustment speed and thus with regard to the jammed objects Exerted force can be optimized.

Besonders günstige Weiterbildungen des erfindungsgemäßen Verfahrens sind in den Unteransprüchen angegeben und werden anhand einer schematischen Darstellung eines elektrisch betriebenen, als Fensterhebesystem ausgebildeten Aggregates näher erläutert.Particularly favorable developments of the method according to the invention are shown in the dependent claims and are based on a schematic Representation of an electrically operated, designed as a window lifting system Aggregates explained in more detail.

Wie aus der Zeichnung hervorgeht, wird das elektrisch betriebene Aggregat von einem in einer Kraftfahrzeugtür 7 angeordneten Fensterhebesystem repräsentiert, welches mit einem elektrischen Stellmotor 1 versehen ist, der über ein nur angedeutetes Stellorgan 8 das zu verstellende Aggregateteil 9 (Fensterscheibe) bewegt und damit das von dem zu verstellenden Aggregateteil und einem feststehenden Aggregateteil (Fensterrahmen) gebildete Aggregat (Fenster) öffnet oder schließt. Der elektrische Stellmotor 1 ist dabei über eine Leistungshalbleiter-Schaltstufe 6 an der Spannungsversorgung (Bordnetz) angeschlossen, die mit einer von einem Taktgeber 5 beeinflußten Steuerelektronik 3 verbunden ist, der einerseits Bedienelemente 2 und andrerseits eine Sensoreinrichtung 4 zugeordnet sind. Somit kann die Steuerelektronik 3 und damit der Stellmotor 1 über die Bedienelemente 2 unmittelbar und über die Sensoreinrichtung 4 mittelbar durch ursächlich mit dem Fensterhebesystem zusammenhängende Verstellparameter beeinflußt werden.As can be seen from the drawing, the electrically powered unit from represents a window lifting system arranged in a motor vehicle door 7, which is provided with an electric servomotor 1, which has only one indicated actuator 8 the unit part 9 to be adjusted (window pane) moves and thus that of the unit part to be adjusted and one fixed unit part (window frame) formed unit (window) opens or closes. The electric servomotor 1 is a Power semiconductor switching stage 6 on the power supply (vehicle electrical system) connected with control electronics influenced by a clock 5 3 is connected, the one hand controls 2 and the other one Sensor device 4 are assigned. The control electronics 3 and thus the servomotor 1 via the controls 2 directly and via the Sensor device 4 indirectly by causally with the window lifting system related adjustment parameters are influenced.

Der gesamte Verstellweg s der Fensterscheibe 9 ist in zwei Verstell-Bereiche a,b unterteilt, wovon der eine Bereich a, der von dem vollständig geöffneten bis zu einem überwiegend geschlossenen Zustand des Fensters geht, als sogenannter erster Sicherheitsbereich anzusehen ist. In diesem Verstell-Bereich a wird ausgehend von einem sogenannten ersten ggf. fortlaufend nachgebesserten Meßwert durch kontinuierliche Prüfung untersucht, ob ein aus diesem Meßwert gebildeter, statische und dynamische Größen berücksichtigender Grenzwert von nachfolgend ermittelten Meßwerten überschritten wird. Sollte dies der Fall sein, so wird über die vorzugsweise aus einem Mikrocomputer bestehende Steuerelektronik 3 eine sogenannte Gefahrenöffnung des Fensters eingeleitet, d.h. der elektrische Stellmotor 1 wird abgeschaltet und anschließend gegensinnig betrieben, so daß das Fenster wieder geöffnet wird, wobei der Öffnungsweg dann frei gewählt werden kann.The entire adjustment path s of the window pane 9 is divided into two adjustment areas a, b divided, of which an area a, from the fully open to a predominantly closed state of the window, so-called first security area is to be seen. In this adjustment area a starting from a so-called first, possibly continuously improved Measured value examined by continuous testing, whether one from this measured value formed, static and dynamic quantities taking into account the limit of subsequently determined measured values are exceeded. If so, so is via the control electronics, preferably consisting of a microcomputer 3 initiated a so-called danger opening of the window, i.e. the electric Actuator 1 is switched off and then operated in opposite directions, so that The window is opened again, the opening path then being freely chosen can.

Der Bereich a kann dabei in zwei Abschnitte a',a'' unterteilt werden, wobei in einem vom vollständig geöffneten bis zum etwa halbgeöffneten Zustand des Fensters gehenden Abschnitt a' keine Sicherheit für den Einklemmfall in vorstehend erwähntem Sinn vorhanden ist und zwar weil in diesem Abschnitt das Einklemmen von Körperteilen mit mehr oder minder großer Wahrscheinlichkeit ausgeschlossen werden kann.The area a can be divided into two sections a ', a' ', in one from the fully open to the approximately half-open state of the window outgoing section a 'no safety in the case of pinching in above mentioned sense is there because in this section the pinching excluded from body parts with a greater or lesser probability can be.

In dem Abschnitt a'' wird dagegen wie vorerwähnt verfahren, daß heißt im Einklemmfall erfolgt dabei eine Abschaltung des Stellmotors und gegebenenfalls die vorerwähnte sogenannte Gefahrenöffnung des Fensters.In section a '', on the other hand, the procedure is as mentioned, that is, in In the event of jamming, the servomotor is switched off and, if necessary, the The aforementioned so-called danger opening of the window.

Beim Übergang vom Bereich a zum Bereich b wird die Leistung des Stellmotors 1 durch Vorgabe einer errechneten, vorzugsweise mittels Pulsweitenmodulation der Versorgungsspannung erzeugten Spannung soweit abgesenkt, daß dadurch sich die Verstellgeschwindigkeit auf den tiefstmöglichen, d.h. einen Motorstillstand gerade noch nicht zulassenden Wert reduziert. Aufgrund dessen wird die im System vorhandene Bewegungsenergie verringert, so daß das System bei ansonsten unveränderter Sensorik und gegebenen mechanischen Parametern auf eventuelle Einklemmkörper mit minimierten Kräften reagiert.During the transition from area a to area b, the power of the servomotor 1 by specifying a calculated, preferably by means of pulse width modulation Supply voltage generated voltage so far lowered that this the adjustment speed to the lowest possible, i.e. an engine stop just not allowed value reduced. Because of this, the im System existing kinetic energy is reduced, so that the system otherwise unchanged sensors and given mechanical parameters possible trapping bodies reacted with minimized forces.

Sollte die Versorgungsspannung - z.B. durch gleichzeitigen Betrieb mehrerer Verbraucher - unter einen definierten Wert absinken, so wird die am Stellmotor 1 anliegende Spannung auf den Wert der Versorgungsspannung eingestellt. Dadurch ist gewährleistet, daß über den gesamten sicherheitsrelevanten zweiten Bereich nur eine minimierte Kraft auf ein gegebenenfalls eingeklemmtes Objekt ausgeübt wird.If the supply voltage - e.g. by operating several at the same time Consumers - fall below a defined value, so that on the servomotor 1 applied voltage set to the value of the supply voltage. Thereby it is guaranteed that only over the entire security-relevant second area a minimized force is exerted on an object that may be jammed.

Natürlich kann auch dieser Bereich b wieder in zwei Abschnitte b',b'' unterteilt werden, wobei in dem Abschnitt b' - in dem ein Einklemmen von z.B. Fingern noch möglich ist - die Sicherheit gewährleistet ist, während in dem Bereich b'', der dem Einlauf der Fensterscheibe in die damit kooperierende Dichtungsanordnung zugeordnet ist, diese aufgrund fehlender Relevanz nicht vorhanden ist. In diesem Bereich kann ein Einklemmen von Fingern oder anderen Körperteilen nicht mehr auftreten. Es muß aber dafür gesorgt werden, daß das Fenster vollkommen geschlossen wird, womit aufgrund der beteiligten Dichtmittel ein höherer Kraftaufwand verbunden ist, der den vorerwähnten Sicherheitskriterien entgegen steht.Of course, this area b can again be divided into two sections b ', b' ' , in section b '- in which a pinching of e.g. Fingers still is possible - the security is guaranteed while in the area b '' of the Entry of the window pane into the cooperating sealing arrangement assigned, it does not exist due to lack of relevance. In this Area can no longer pinch fingers or other body parts occur. But it must be ensured that the window is perfect is closed, making a higher one due to the sealants involved Exertion of force is connected, contrary to the aforementioned safety criteria stands.

Um dabei in diesem Bereich die Fensterscheibe bei unter den vorstehend erwähnten definierten Wert abgesunkener Versorgungsspannung gegen den erhöhten Widerstand der Dichtungsanordnung bis zum Endanschlag zu bringen, wird eine Spannungsnachführung in der Art durchgeführt, daß die Geschwindigkeit möglichst gleichbleibend aufrechterhalten wird.To do this in this area the window pane under the above mentioned defined value of decreased supply voltage against the to bring increased resistance of the sealing arrangement to the end stop, a voltage tracking is carried out in such a way that the speed is maintained as consistently as possible.

Claims (6)

Verfahren zur Überwachung und Steuerung des Öffnungs- und Schließvorgangs von in Kraftfahrzeugen vorhandenen elektrisch betriebenen Aggregaten, insbesondere von Fensterhebern und/oder Schiebedächern, wobei ein an die elektrische Spannungsversorgung angeschlossener, mit einem Stellorgan des Aggregates verbundener elektrischer Stellmotor unmittelbar über Bedienelemente und mittelbar über eine die ursächlich mit dem Aggregat zusammenhängenden Verstellparameter erfassende Sensoreinrichtung unter Zwischenschaltung einer Steuerelektronik beeinflußbar ist, wobei die Leistung des Stellmotors über eine Schaltstufe in Abhängigkeit von bestimmten Positionen des Aggregates zur Realisierung von jeweils darauf sich beziehenden unterschiedlichen Verstellgeschwindigkeiten des Stellorganes über dessen Verstellweg durch Änderung von zumindest einer der beiden die Leistung bestimmenden elektrischen Größen "Strom; Spannung" so veränderbar ist, daß darüber die im Verstellweg wirksame - ggf. auf ein eingeklemmtes Objekt zur Ausübung gelangende - Kraft entsprechend einstellbar ist, wobei der Verstellweg in zumindest zwei einerseits von einem zumindest teilweise geöffneten bis zu einem überwiegend geschlossenen und andererseits von dem überwiegend geschlossenen bis zu einem zumindest nahezu vollkommen geschlossenen Zustand des Aggregates gehende Bereiche unterteilt wird, wobei die Verstellgeschwindigkeit beim Übergang von dem einen zu dem anderen Bereich veränderbar ist und wobei in beiden Bereichen des Verstellwegs eine Begrenzung der im Einklemmfall ausgeübten Kraft vorgenommen wird, dadurch gekennzeichnet, daß in dem von dem überwiegend geschlossenen bis zu dem zumindest nahezu vollkommen geschlossenen Zustand des Aggregates gehenden Bereich bzw. Abschnitt (b') des Verstellwegs (s) die Geschwindigkeit durch Vorgabe von zumindest einer errechneten, die Leistung bestimmenden elektrischen Größe "Strom und/oder Spannung" soweit abgesenkt wird, daß die im Einklemmfall ausgeübte Kraft - unter Vermeidung eines Motorstillstandes - auf ein Minimum begrenzt wird.Method for monitoring and controlling the opening and closing process of existing electrically operated units in motor vehicles, in particular window regulators and / or sunroofs, with an electric servomotor connected to the electrical power supply and connected to an actuator of the unit directly via control elements and indirectly via a Sensor device which detects the cause of the adjustment parameters associated with the aggregate can be influenced with the interposition of control electronics, the output of the servomotor via a switching stage depending on specific positions of the aggregate for realizing different adjustment speeds of the actuating element, which relate thereto, via its adjustment path by changing at least one of the both the power-determining electrical quantities "current;voltage" can be changed in such a way that the effective - gg f. force exerted on a jammed object to be exercised can be adjusted accordingly, the adjustment path in at least two areas going from an at least partially open to a predominantly closed area and on the other hand from the predominantly closed to an at least almost completely closed state of the unit is divided, the adjustment speed at the transition from one to the other area being changeable and with a limitation of the force exerted in the case of jamming being carried out in both areas of the adjustment, characterized in that in the from the predominantly closed to the at least almost completely closed state of the aggregate area or section (b ') of the adjustment path (s) the speed is reduced by specifying at least one calculated, the power-determining electrical quantity "current and / or voltage" to such an extent that the incl If necessary, the force exerted - while avoiding engine shutdown - is kept to a minimum. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß von den beiden jeweils eingestellten, die Leistung des Stellmotors (1) bestimmenden elektrischen Größen zumindest eine über den zwischen zwei bestimmten Positionen liegenden Bereich bzw. Abschnitt (b') des Verstellwegs (s) über die Schaltstufe (6) nicht verändert wird.A method according to claim 1, characterized in that of the two each set, which determines the output of the servomotor (1) Sizes at least one over the two positions Area or section (b ') of the adjustment path (s) via the switching stage (6) is not is changed. Verfahren nach einen der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß von den beiden die Leistung des Stellmotors (1) bestimmenden elektrischen Größen allein die Spannung in Abhängigkeit von bestimmten Positionen des Aggregates über die Schaltstufe (6) verändert wird und daß die jeweils eingestellte Spannung in dem zwischen zwei bestimmten Positionen liegenden Bereich bzw. Abschnitt (b') des Verstellwegs (s) unabhängig von der Versorgungsspannung unverändert beibehalten wird.Method according to one of claims 1 or 2, characterized in that of the two electrical quantities determining the output of the servomotor (1) only the tension as a function of certain positions of the unit is changed via the switching stage (6) and that the respectively set voltage in the area or section (b ') between two specific positions the adjustment path (s) unchanged regardless of the supply voltage is maintained. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die die Leistung des Stellmotors (1) bestimmende Spannung bei einem Abfall der Versorgungsspannung unter einen definierten Wert auf den vorhandenen Wert der Versorgungsspannung eingestellt wird. Method according to one of claims 1 to 3, characterized in that the the power of the servomotor (1) determining voltage when the Supply voltage below a defined value to the existing value of the Supply voltage is set. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in dem von dem nahezu vollkommen geschlossenen Zustand bis zu dem vollkommen geschlossenen Zustand gehenden Abschnitt (b'') die Geschwindigkeit des Stellmotors (1) möglichst beibehalten wird.Method according to one of claims 1 to 4, characterized in that in from the almost completely closed state to the completely closed state outgoing section (b '') the speed of the Servomotor (1) is maintained as possible. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Geschwindigkeit durch Nachführung der die Leistung des Stellmotors (1) bestimmenden Spannung möglichst gleichbleibend aufrechterhalten wird.A method according to claim 5, characterized in that the speed by tracking the voltage determining the power of the servomotor (1) is maintained as consistently as possible.
EP97114106A 1996-08-20 1997-08-15 Method for supervising and controlling the process of opening and closing electrically driven aggregats Withdrawn EP0825698A3 (en)

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DE19633415A DE19633415C1 (en) 1996-08-20 1996-08-20 Monitoring and controlling the opening and closure of electrically operated systems e.g. in motor vehicle
DE19633415 1996-08-20

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BR9702777A (en) 1999-01-19
DE19633415C1 (en) 1997-11-27
EP0825698A3 (en) 1998-07-01

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